坏蛋 好蛋 （习语）

cherishie

a bad egg (mainly American, informal)
someone who behaves in a bad or dishonest way.
e.g. He's a bad egg - don't believe anything he says.

good egg means the opposite.

伊人独酌

hehe, interesting words and it is easy to remember!
I got it, thanks! (for today is thanks giving day!)